component
SMAJ28CAHE3-TP
Public Made by Adomby adom
MCC(美微科) , SMA(DO-214AC). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
SMAJ28CAHE3-TP
MCC(美微科) · IC · SMA(DO-214AC)
SMAJ28CAHE3-TP from MCC(美微科), in a SMA(DO-214AC). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | A1 | passive | Bidirectional TVS terminal 1 (no polarity; no cathode band on bi-directional types), 28V reverse stand-off, 400W min peak pulse power on 10/1000μs waveform. |
| 2 | A2 | passive | Bidirectional TVS terminal 2 (no polarity; interchangeable with terminal 1), 28V reverse stand-off, 45.4V max clamping voltage at 8.8A peak pulse current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MCC(美微科) |
| Package | SMA(DO-214AC) |
| Category | |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Peak Pulse Power Dissipation (10/1000 µs waveform) | PPPM | 400 | W | Note 3,7: 10/1000us waveform, non-repetitive | 1 | ||
| Breakdown Voltage (bi-directional, SMAJ28CA) | V(BR) | 31.1 | 34.4 | V | @ IT = 1 mA | 2 | |
| Maximum Clamping Voltage (bi-directional, SMAJ28CA) | VC | 45.4 | V | @ IPP | 2 | ||
| Maximum Reverse Leakage (bi-directional, SMAJ28CA) | ID | 1 | µA | @VWM = 28 V | 2 | ||
| Steady State Power Dissipation | PM(AV) | 1.5 | W | Note 3,6: lead temperature TL = 75°C | 1 | ||
| Operating Junction Temperature Range | TJ | -55 | 175 | °C | 1 | ||
| Storage Temperature Range | TSTG | -55 | 175 | °C | 1 | ||
| Typical Thermal Resistance, Junction to Ambient | RθJA | 100 | °C/W | Junction to ambient | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | copper pads to each terminal. | 1 |
CAD (KiCad official)
- Symbol:
SMAJ28CAHE3-TP - Footprint:
Diode_SMD:D_SMA - 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files:
smaj28cahe3-tp-etched.step/smaj28cahe3-tp-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smaj28cahe3-tp.step/smaj28cahe3-tp.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MCC(美微科) datasheet (4 pp, sha256
6153f897b7e6da84, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).
# SMAJ28CAHE3-TP
**MCC(美微科)** · IC · SMA(DO-214AC)
SMAJ28CAHE3-TP from MCC(美微科), in a SMA(DO-214AC). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
## Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | A1 | passive | Bidirectional TVS terminal 1 (no polarity; no cathode band on bi-directional types), 28V reverse stand-off, 400W min peak pulse power on 10/1000μs waveform. |
| 2 | A2 | passive | Bidirectional TVS terminal 2 (no polarity; interchangeable with terminal 1), 28V reverse stand-off, 45.4V max clamping voltage at 8.8A peak pulse current. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MCC(美微科) |
| Package | SMA(DO-214AC) |
| Category | |
| Pins | 2 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Peak Pulse Power Dissipation (10/1000 µs waveform) | PPPM | 400 | | | W | Note 3,7: 10/1000us waveform, non-repetitive | 1 |
| Breakdown Voltage (bi-directional, SMAJ28CA) | V(BR) | 31.1 | | 34.4 | V | @ IT = 1 mA | 2 |
| Maximum Clamping Voltage (bi-directional, SMAJ28CA) | VC | | | 45.4 | V | @ IPP | 2 |
| Maximum Reverse Leakage (bi-directional, SMAJ28CA) | ID | | | 1 | µA | @VWM = 28 V | 2 |
| Steady State Power Dissipation | PM(AV) | | | 1.5 | W | Note 3,6: lead temperature TL = 75°C | 1 |
| Operating Junction Temperature Range | TJ | -55 | | 175 | °C | | 1 |
| Storage Temperature Range | TSTG | -55 | | 175 | °C | | 1 |
| Typical Thermal Resistance, Junction to Ambient | RθJA | | 100 | | °C/W | Junction to ambient | 1 |
## Materials and finish
As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | | copper pads to each terminal. | 1 |
## CAD (KiCad official)
- Symbol: `SMAJ28CAHE3-TP`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files: `smaj28cahe3-tp-etched.step` / `smaj28cahe3-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smaj28cahe3-tp.step` / `smaj28cahe3-tp.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [MCC(美微科) datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604440430906134528) (4 pp, sha256 `6153f897b7e6da84`, retrieved 2026-10-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).
[Datasheet PDF](docs/smaj28cahe3-tp-datasheet.pdf)